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Cheap flights from Dublin to Chicago from £340

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Chicago departing on 30/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Logo
17:15 - 15:20DUB-ORD
27h 05m1 stop
Logo
17:20 - 15:45ORD-DUB
16h 25m1 stop
£340
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Thu, 30 Oct - Tue, 4 Nov
Delta Logo
05:55 - 15:20DUB-ORD
14h 25m1 stop
Delta Logo
17:20 - 15:45ORD-DUB
16h 25m1 stop
£341Delta
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Wed, 29 Oct - Tue, 4 Nov
American Airlines Logo
10:45 - 18:45DUB-ORD
14h 00m1 stop
American Airlines Logo
21:45 - 15:20ORD-DUB
11h 35m1 stop
£341American Airlines
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Fri, 26 Dec - Mon, 5 Jan
British Airways Logo
08:50 - 18:45DUB-ORD
15h 55m1 stop
British Airways Logo
20:45 - 15:20ORD-DUB
12h 35m1 stop
£345British Airways
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Fri, 26 Dec - Mon, 5 Jan
British Airways Logo
08:45 - 18:15DUB-ORD
15h 30m1 stop
British Airways Logo
22:45 - 17:25ORD-DUB
13h 40m1 stop
£348British Airways
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Mon, 20 Oct - Thu, 30 Oct
Aer Lingus Logo
11:35 - 14:00DUB-ORD
8h 25mdirect
Aer Lingus Logo
15:45 - 05:10ORD-DUB
7h 25mdirect
£349Aer Lingus
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Tue, 7 Oct - Tue, 14 Oct
United Airlines Logo
09:20 - 18:41DUB-ORD
15h 21m1 stop
United Airlines Logo
20:20 - 09:45ORD-DUB
7h 25mdirect
£351United Airlines
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Sat, 13 Sep - Tue, 30 Sep
Aer Lingus Logo
16:40 - 19:00DUB-ORD
8h 20mdirect
Aer Lingus Logo
21:15 - 10:40ORD-DUB
7h 25mdirect
£352Aer Lingus
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Wed, 1 Oct - Wed, 1 Oct
United Airlines Logo
09:20 - 14:55DUB-ORD
11h 35m1 stop
United Airlines Logo
20:20 - 09:45ORD-DUB
7h 25mdirect
£353United Airlines
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Thu, 4 Sep - Wed, 10 Sep
Finnair Logo
13:45 - 15:45DUB-ORD
8h 00mdirect
Finnair Logo
22:15 - 11:40ORD-DUB
7h 25mdirect
£362Finnair
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Wed, 10 Sep - Wed, 1 Oct

United Airlines flights from Dublin to Chicago

Our best United Airlines deals on Dublin to Chicago flight tickets
United Airlines
13 Sept
DUB09:20Dublin
15h 21m
1 stop
ORD18:41Chicago O'Hare Intl
30 Sept
ORD20:20Chicago O'Hare Intl
7h 25m
DUB09:45Dublin
£351
Find similar
United Airlines
4 Sept
DUB09:20Dublin
11h 35m
1 stop
ORD14:55Chicago O'Hare Intl
10 Sept
ORD20:20Chicago O'Hare Intl
7h 25m
DUB09:45Dublin
£353
Find similar
United Airlines
13 Sept
DUB09:20Dublin
30h 31m
1 stop
ORD09:51Chicago O'Hare Intl
26 Sept
ORD21:20Chicago O'Hare Intl
27h 50m
1 stop
DUB07:10Dublin
£355
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SWISS flights from Dublin to Chicago

Our best SWISS deals on Dublin to Chicago flight tickets
SWISS
17 Sept
DUB18:40Dublin
23h 25m
2 stops
ORD12:05Chicago O'Hare Intl
28 Sept
ORD15:45Chicago O'Hare Intl
20h 05m
1 stop
DUB17:50Dublin
£376
Find similar
SWISS
17 Sept
DUB18:40Dublin
23h 25m
2 stops
ORD12:05Chicago O'Hare Intl
30 Sept
ORD19:05Chicago O'Hare Intl
35h 05m
1 stop
DUB12:10Dublin
£379
Find similar
SWISS
1 Sept
DUB18:40Dublin
23h 25m
2 stops
ORD12:05Chicago O'Hare Intl
10 Sept
ORD18:10Chicago O'Hare Intl
17h 40m
2 stops
DUB17:50Dublin
£416
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Dublin to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 25 August 2025.
Use the filters below to find and compare flights from Dublin to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 30/10

17:15-15:20

1 stop27h 05m

Chicago O'Hare Intl

Tue 4/11

17:20-15:45

1 stop16h 25m

£340

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 29/10

05:55-15:20

1 stop14h 25m

Chicago O'Hare Intl

Tue 4/11

17:20-15:45

1 stop16h 25m

£341

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 26/12

10:45-18:45

1 stop14h 00m

Chicago O'Hare Intl

Mon 5/1

21:45-15:20

1 stop11h 35m

£341

DublinChicago

DUB - ORD

DUBORD

Dublin

Fri 26/12

08:50-18:45

1 stop15h 55m

Chicago O'Hare Intl

Mon 5/1

20:45-15:20

1 stop12h 35m

£345

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 20/10

08:45-18:15

1 stop15h 30m

Chicago O'Hare Intl

Thu 30/10

22:45-17:25

1 stop13h 40m

£348

DublinChicago

DUB - ORD

DUBORD

Dublin

Tue 7/10

11:35-14:00

Nonstop8h 25m

Chicago O'Hare Intl

Tue 14/10

15:45-05:10

Nonstop7h 25m

£349

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 13/9

09:20-18:41

1 stop15h 21m

Chicago O'Hare Intl

Tue 30/9

20:20-09:45

Nonstop7h 25m

£351

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 1/10

16:40-19:00

Nonstop8h 20m

Chicago O'Hare Intl

Wed 1/10

21:15-10:40

Nonstop7h 25m

£352

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 4/9

09:20-14:55

1 stop11h 35m

Chicago O'Hare Intl

Wed 10/9

20:20-09:45

Nonstop7h 25m

£353

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 10/9

13:45-15:45

Nonstop8h 00m

Chicago O'Hare Intl

Wed 1/10

22:15-11:40

Nonstop7h 25m

£362

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Dublin to Chicago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Dublin and Chicago?

What is the cheapest month to fly to Chicago?

The cheapest month to fly to Chicago from Dublin is in January. Flight prices, which tend to average around £367, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Chicago from Dublin during September instead. Flights to Chicago in September, while not as cheap as those in January, still average around £376.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Tuesday when prices can be found for as low as £531. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Chicago is Monday, with ticket prices averaging around £588.

What is the cheapest time of day to depart on your flight to Chicago?

Flying to Chicago from Dublin in the evening is the least expensive time of day to depart. momondo users have found prices as low as £477 when looking at flights departing in the evening. Flights at midday are often more expensive, with an average ticket price of £584.

What is the cheapest Dublin to Chicago flight route?

Fly from Dublin to Chicago O'Hare Intl for the best Dublin - Chicago flight prices

How far in advance should I book a flight to Chicago?

You are more likely to see cheaper flights to Chicago from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around £442 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Dublin for as low as £380 on momondo.

What cabin class options are available on Dublin to Chicago flights?

There are 3 cabin classes available to choose from on Dublin to Chicago flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Dublin to Chicago flights?

You could potentially save up to 42% on your flight if you consider stops on a Dublin to Chicago flight.

How have Dublin to Chicago flight prices changed over time?

As of August 2025, prices for Dublin to Chicago flights are approximately 11% more expensive when compared to flights at the same time last year.

When to book flights from Dublin to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Chicago according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Dublin to Chicago (DUB to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dublin to Chicago

Best price found

£405

Fastest flight time

8h 00m

Direct flights

Every day

Airports in Chicago

1 airport
The best one-way flight to Chicago from Dublin in the past 72 hours is £405. The best return flight deal from Dublin to Chicago found on momondo in the last 72 hours is £441.
The fastest flight from Dublin to Chicago takes 8h 00m
Direct flights go from Dublin to Chicago every day.
There is 1 airport near Chicago: Chicago O'Hare Intl (ORD)
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  • How far is Dublin to Chicago by plane?

    The distance between Dublin and Chicago is about 3657.3 mi. By plane, this route typically takes 8h 00m.

  • When did momondo last update prices for flights from Dublin Airport to Chicago?

    Prices for flights from Dublin Airport to Chicago refresh daily.

  • How many operators does momondo search for flights from Dublin Airport to Chicago?

  • How old do you have to be to fly from Dublin Airport to Chicago?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dublin Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The necessary travel and health documents for your Chicago trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Dublin to Chicago?

  • What is the most popular airline from Dublin to Chicago?

Best airlines flying from Dublin to Chicago

Compare and see reviews for airlines that fly from Dublin to Chicago with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £264Free CancellationRating
7.0
533 reviews
Search Icelandair flights
British AirwaysPriceFrom £269Free CancellationRating
6.7
7,305 reviews
Search British Airways flights
FinnairPriceFrom £313Free CancellationRating
7.6
1,320 reviews
Search Finnair flights
Aer LingusPriceFrom £334Free CancellationRating
7.2
1,230 reviews
Search Aer Lingus flights
United AirlinesPriceFrom £344Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights
American AirlinesPriceFrom £485Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

  • Finnair Flights From Dublin to Chicago

    Finnair operates around 7 flights from Dublin to Chicago every week. The average price of these flights found in the last 72 hours has been £717, but momondo users have found Finnair deals from Dublin to Chicago from as low as £423 round-trip. Finnair has been scored 7.6/10 in 1,320 reviews.

  • United Airlines Flights From Dublin to Chicago

    United Airlines (7.4/10 from 8,940 reviews) operates around 6 flights from Dublin to Chicago in any given week. The average United Airlines airfare for this route is around £851, with deals from around £465 rare but found on momondo. Referenced prices are for round-trip Dublin to Chicago flight searches in the last 72 hours.

Why use momondo?

Why should I use momondo to find a flight deal from Dublin to Chicago?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Dublin to Chicago . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Dublin to Chicago with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Chicago from Dublin with this policy.

How can momondo help me find flights from Dublin to Chicago?

Once all potential Dublin to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Dublin to Chicago right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chicago from Dublin. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport